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Dravite

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MCP728709

Dravite

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Description
Locality: 
Crevoladossola, Novara, Ossola Valley, Piedmont, Italy
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
3.7 × 4.5 × 3.3 cm
Largest Crystal: 
1.80cm
Description

Brown, prismatic, lustrous dravite crystals up to 18 mm tall, partly embedded in micaceous matrix from Crevola d´Ossola, Italy. The crystals show some minor imperfections.

Mineral Data
What's on the rock

Dravite

Formula: 
Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Strunz: 
9.CK.05
Crystal System: 
Trigonal
Hardness: 
7.0
Type Locality: 
Dobrova, Dravograd (Unterdrauburg), Slovenia

Seller Information

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